/*
 * Copyright 2016-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.glowroot.common2.repo.util;

import javax.crypto.SecretKey;

import org.checkerframework.checker.nullness.qual.Nullable;

public interface LazySecretKey {

    @Nullable
    SecretKey getExisting() throws Exception;

    SecretKey getOrCreate() throws Exception;

    // this is only used by central
    @SuppressWarnings("serial")
    public class SymmetricEncryptionKeyMissingException extends Exception {}
}
